AMPP CP2 Cathodic Protection TechnicianExam Guide & Preparation
AMPP CP2 Cathodic Protection Technician is the intermediate-level credential in AMPP's Cathodic Protection program, validating intermediate knowledge of corrosion theory, CP system types, and advanced field measurement techniques, beyond the field-testing focus of CP1. AMPP was formed by the 2021 merger of NACE International and SSPC, so this credential is still frequently referenced as "NACE CP2" in job postings, it's the same program under AMPP's current name.
AMPP CP2 Cathodic Protection Technician is the intermediate-level credential in AMPP's Cathodic Protection program, validating intermediate knowledge of corrosion theory, CP system types, and advanced field measurement techniques, beyond the field-testing focus of CP1. AMPP was formed by the 2021 merger of NACE International and SSPC, so this credential is still frequently referenced as "NACE CP2" in job postings, it's the same program under AMPP's current name.
The CP2 Theory Exam (test code NACE-CP2-001) is 90 multiple-choice questions delivered by computer-based testing over 2.5 hours, covering intermediate and basic areas of the Cathodic Protection Body of Knowledge. A separate practical exam is administered at the end of the CP2 course itself.
CP2 is designed for candidates with either a heavy engineering or scientific background combined with some working CP knowledge, or extensive years of field experience combined with technical background, a combination-of-paths eligibility structure rather than a single fixed threshold. This program is intended for personnel involved in testing CP system effectiveness, troubleshooting, and recording that data, going beyond CP1's more purely observational field-testing scope.
Whether you're looking for a structured AMPP CP2 course, self-paced AMPP CP2 online training, or simply a focused way to study for AMPP CP2 certification requirements around a working schedule, EIM's AMPP CP2 training platform is built to fit all three.
CP2 vs CP1 vs CP3 vs CP4
AMPP's Cathodic Protection program runs CP1 through CP4 as a sequential progression by depth of competency. CP1 focuses on basic field testing and observation. CP2, this certification, moves into intermediate corrosion theory, CP system design fundamentals, and advanced field measurement. CP3 (Cathodic Protection Technologist) builds further into design work and interference mitigation. CP4 (Cathodic Protection Specialist), the senior level, covers full system design, specification, and program management.
Unlike AMPP's Coating Inspector Program, where each level has a hard, formally stated prerequisite of holding the level below, CP2 eligibility is structured around a combination of education and experience routes rather than a single mandatory "must hold CP1" gate. That said, CP1 knowledge is foundational to CP2's content, and most candidates pursuing CP2 either hold CP1 already or have equivalent field experience covering the same ground.
Qualification & Prerequisites
What the Exam Actually Tests
Five domains, weighted by question share. This is the map the question bank is built directly against.
Corrosion kinetics, polarization, electrochemical cell theory at an intermediate depth
Sacrificial and impressed current systems, protection criteria, equipment troubleshooting
Basic system design principles, current requirement testing methodology
Pipe-to-earth resistance calculations, four-wire current span testing, ammeter and voltmeter circuit calculations
Stray current sources, interference identification and mitigation on underground pipelines
| Domain | Covers | |
|---|---|---|
| 01 | Electrochemical Corrosion Theory & Kinetics | Corrosion kinetics, polarization, electrochemical cell theory at an intermediate depth |
| 02 | CP System Types, Criteria & Equipment | Sacrificial and impressed current systems, protection criteria, equipment troubleshooting |
| 03 | CP System Design & Current Requirement Testing | Basic system design principles, current requirement testing methodology |
| 04 | Advanced Field Measurement & Calculations | Pipe-to-earth resistance calculations, four-wire current span testing, ammeter and voltmeter circuit calculations |
| 05 | Stray Current Interference | Stray current sources, interference identification and mitigation on underground pipelines |
01. Electrochemical Corrosion Theory & Kinetics
02. CP System Types, Criteria & Equipment
03. CP System Design & Current Requirement Testing
04. Advanced Field Measurement & Calculations
05. Stray Current Interference
How to Register and What to Expect on Exam Day
Candidates register directly through AMPP, not through EIM or any third-party training provider. The CP2 Theory Exam is delivered via computer-based testing, while the practical exam is administered at the end of the CP2 course itself; successful completion of the practical exam is required to complete the CP2 course.
Check AMPP's current fee schedule for official course and exam pricing, which is separate from EIM's AMPP CP2 self-prep pricing. Certification validity and renewal terms should be confirmed against AMPP's current published requirements.
How to Prepare for AMPP CP2 Cathodic Protection Technician
Self-paced by default. Add live instruction if you want structured guidance.
AMPP CP2 Cathodic Protection Technician Question Bank
1050 practice questions across 4 modules, mapped to every BOK domain. Study at your own pace, no fixed schedule required.
Sample Practice Questions
An ammeter with an internal resistance of 0.15 ohms is inserted into a circuit normally operating at 5V and 20A. Which statement best describes the effect on the reading?
A buried pipeline running parallel to a DC transit system shows corrosion concentrated at specific locations correlating with the transit system's operating schedule. What does this pattern most likely indicate?
What's Included in the Self-Prep Package
AMPP CP2 Question Bank
Scenario and calculation-based questions covering corrosion theory, CP system design, and field measurement.
AMPP CP2 Study Notes
Downloadable study material aligned to the CP2 body of knowledge, including worked calculation examples.
AMPP CP2 Mock Test
Practice test mirroring the 90-question, 2.5-hour theory exam format.
Related Certifications
Common Questions
What is the AMPP CP2 certification?
How many questions are on the AMPP CP2 exam?
Do I need to hold AMPP CP1 before taking CP2?
How much does AMPP CP2 certification cost?
Does the AMPP CP2 exam include calculations?
What does the AMPP CP2 exam cover that CP1 doesn't?
What does EIM's AMPP CP2 training include?
Is AMPP CP2 the same as NACE CP2?
Why AMPP CP2 Cathodic Protection Technician Matters for Asset Integrity Careers
CP2's theory exam includes calculation-based questions, resistance, current, and voltage calculations using real field data, not just conceptual multiple-choice recall. Candidates who haven't practiced applying Ohm's law and related formulas to realistic CP system scenarios under time pressure often lose more time on these questions than the conceptual ones, even when they understand the underlying theory.
EIM's AMPP CP2 question bank is built around this reality, pairing conceptual questions on corrosion theory and CP system types with worked calculation problems using realistic pipe-to-earth resistance, current span, and potential data, since that combination is exactly what the real exam tests.
- ✓1050 practice questions
- ✓4 structured modules
- ✓1 Year
- ✓Mobile-friendly platform
Confused about which certification is right for you? Talk to our experts.